Sill



FIG. 1 is a perspective view of the sill, showing my new design.

FIG. 2 is a front elevational view of the sill.

FIG. 3 is a left side elevational view of the sill.

FIG. 4 is a right side elevational view of the sill.

FIG. 5 is a top plan view of the sill; and,

FIG. 6 is a bottom plan view of the sill. 

The ornamental design for sill, substantially as shown. 